---
product_id: 7714379
title: "20 oz Big Gap Filler Insulating Foam Sealant ( package may vary )"
brand: "great stuff"
price: "€ 44.78"
currency: EUR
in_stock: true
reviews_count: 9
category: "Great Stuff"
url: https://www.desertcart.gr/products/7714379-20-oz-big-gap-filler-insulating-foam-sealant-package-may
store_origin: GR
region: Greece
---

# Permanent weather-tight seal, indoor/outdoor Tack free in 6 minutes, trims in 30 20 oz can covers up to 30 tubes of caulk 20 oz Big Gap Filler Insulating Foam Sealant ( package may vary )

**Brand:** great stuff
**Price:** € 44.78
**Availability:** ✅ In Stock

## Summary

> 🚪 Seal the Gap, Seal Your Status: The Pro’s Choice for Big Jobs!

## Quick Answers

- **What is this?** 20 oz Big Gap Filler Insulating Foam Sealant ( package may vary ) by great stuff
- **How much does it cost?** € 44.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/7714379-20-oz-big-gap-filler-insulating-foam-sealant-package-may)

## Best For

- great stuff enthusiasts

## Why This Product

- Trusted great stuff brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Defend Your Space:** Creates a permanent airtight seal that blocks drafts, moisture, and pesky insects—keep your environment comfortable and secure.
- • **Customizable Finish:** Paintable, stainable, and sandable foam lets you tailor the look to your style without compromising performance.
- • **Fast-Acting Sealant:** Achieve a tack-free surface in just 6 minutes and a fully trim-ready finish in 30 minutes—perfect for busy pros.
- • **Versatile & Durable:** Exceptional adhesion to wood, metal, glass, plastic, and masonry ensures a long-lasting, waterproof barrier.
- • **Maximize Efficiency with One Can:** One 20 oz can replaces up to 30 tubes of traditional caulk, saving time and money on every project.

## Overview

Great Stuff 20 oz Big Gap Filler Insulating Foam Sealant is a high-performance polyurethane foam designed to fill large gaps over 1 inch. It forms a permanent, weather-tight, and waterproof seal that minimizes drafts and insect intrusion. Compatible with multiple materials including wood, metal, glass, and plastic, it cures quickly—tack free in 6 minutes and ready to trim in 30. One can replaces up to 30 tubes of caulk, making it an efficient and versatile solution for both interior and exterior sealing projects.

## Description

Product Description GREAT STUFF Big Gap Filler Insulating Foam Sealant offers the same benefits as GREAT STUFF Gaps & Cracks but fills gaps larger than 1 inch. So it's great for creating larger weather-tight seals to stop drafts and keep critters out. Plus, like all GREAT STUFF products, it's airtight, paintable, stainable and sand-able. It's polyurethane-based and perfect for all sorts of materials like wood, drywall, metal, masonry, glass and most plastics. From the Manufacturer Forms a permanent weather-tight seal to minimize drafts and insect infestation

Review: Big gap filler - Wish I had 100 cans of this product. It would save my foundation. Great product. Wish I was rich
Review: Stop the Gap! - This works really well for filling good sized gaps and protecting against wind and drafts, rodents and pests from around openings into houses and sheds. It's easy to use if you follow instructions, and works really well. The only downside for me was that using a part of a can resulted in difficulty using any remainder at a later time as the spray nozzle was blocked by some of the dried spray foam.

## Features

- 20 oz Big Gap Filler Insulating Foam Sealant ( package may vary )
- Forms a permanent weather-tight seal to minimize drafts and insect infestation
- Exceptional adhesion to building materials
- Interior or exterior use
- Tack free in 6 minutes; Trims in 30 minutes and is paintable, stainable and sand able.
- One 20 oz. can = up to 30 tubes of caulk

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B009YNYBV8 |
| Brand | Great Stuff |
| Brand Name | Great Stuff |
| Color | Natural Color |
| Compatible Material | Glass, Metal, Plastic, Wood |
| Customer Reviews | 4.4 out of 5 stars 3,532 Reviews |
| Global Trade Identification Number | 00074985003028 |
| Included Components | 20 oz Big Gap Filler Insulating Foam Sealant ( package may vary ) |
| Item Dimensions | 2.75 x 2.75 x 11.25 inches |
| Item Form | Foam |
| Item Type Name | 20 oz Big Gap Filler Insulating Foam Sealant ( package may vary ) |
| Item Weight | 1.3 pounds |
| Item dimensions L x W x H | 2.75 x 2.75 x 11.25 inches |
| Manufacturer | Great Stuff |
| Material | Plastic |
| Material Type | Plastic |
| Model | 157913 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 157913 |
| Style | 20 Ounce |
| Style Name | 20 Ounce |
| UPC | 074985003028 |
| Unit Count | 20 Ounce |
| Warranty Description | Warranty |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Great Stuff
- **Item Weight:** 1.3 Pounds
- **Item dimensions L x W x H:** 2.75 x 2.75 x 11.25 inches
- **Material:** Plastic
- **Style:** 20 Ounce

## Images

![20 oz Big Gap Filler Insulating Foam Sealant ( package may vary ) - Image 1](https://m.media-amazon.com/images/I/71bTYOM3U6L.jpg)
![20 oz Big Gap Filler Insulating Foam Sealant ( package may vary ) - Image 2](https://m.media-amazon.com/images/I/81yXO9wX+zL.jpg)
![20 oz Big Gap Filler Insulating Foam Sealant ( package may vary ) - Image 3](https://m.media-amazon.com/images/I/71rTAta5prL.jpg)
![20 oz Big Gap Filler Insulating Foam Sealant ( package may vary ) - Image 4](https://m.media-amazon.com/images/I/915ELDjKRcL.jpg)
![20 oz Big Gap Filler Insulating Foam Sealant ( package may vary ) - Image 5](https://m.media-amazon.com/images/I/61ahzX+SV2L.jpg)

## Questions & Answers

**Q: Is this "Open-cell" or "Closed-cell" foam?**
A: I don't know, don't have a can with me but I will say this stuff is garbage. Doesnt spray out well, just drops down, doesnt expand. I don't know if I had bad cans or what but garbage

**Q: Is this water proof?**
A: The can is labeled "water resistant."

**Q: Is it waterproof**
A: Can’t say if it is waterproof or not but if you get it on your hands you will wear it for a while. I tried various solvents to no avail. Wear disposable gloves.

**Q: Can I use this around a gas pipe?**
A: Rigid or Flexable copper/brass? I have to fill a gap between a wall and cabinet where the pipes run.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Big gap filler
*by J***R on May 25, 2026*

Wish I had 100 cans of this product. It would save my foundation. Great product. Wish I was rich

### ⭐⭐⭐⭐⭐ Stop the Gap!
*by L***2 on April 13, 2024*

This works really well for filling good sized gaps and protecting against wind and drafts, rodents and pests from around openings into houses and sheds. It's easy to use if you follow instructions, and works really well. The only downside for me was that using a part of a can resulted in difficulty using any remainder at a later time as the spray nozzle was blocked by some of the dried spray foam.

### ⭐⭐⭐⭐ One-time use
*by J***S on December 1, 2022*

I bought this to make a very rough mold of an item that didn't have to be near perfect by loading up two small trashbags and sandwiching my item between them in a small box hoping it would expand. Though it didn't work for my purposes due to the fact that this compound depends on moisture in the air to cure. No big deal, probably serves the intended purpose very well and that's not why I came here to give 4 stars. It is definitely one time use and while others have suggested soaking the nozzle in water to prevent it curing in the nozzle between uses, the moisture actually causes the nozzle/tube to cure faster preventing further use. Planned obsolescence really irks me. They know what they're doing. They SHOULD provide additional nozzles with instruction steps clear to use some pin to clean out the nub on the can immediately after and between uses and provide extra plastic nozzles. Soaking/rinsing in water does not work and you would need to plan your usage to get everything you need in one session because it will lock up if left for 5 minutes and no movement of the solution through the nozzle.

## Frequently Bought Together

- 20 oz Big Gap Filler Insulating Foam Sealant ( package may vary )
- Great Stuff 99112809 Smart Dispenser Pestblock, Gray
- Great Stuff 99108824 Smart Dispenser Gaps & Cracks, Cream, 12 Ounce

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**Shop now:** [https://www.desertcart.gr/products/7714379-20-oz-big-gap-filler-insulating-foam-sealant-package-may](https://www.desertcart.gr/products/7714379-20-oz-big-gap-filler-insulating-foam-sealant-package-may)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-10-21*